Invention Grant
US09360780B2 Toner, two-component developer, toner set, toner container, printed matter, image forming apparatus, and image forming method
有权
调色剂,双组分显影剂,调色剂组,调色剂容器,印刷品,成像设备和成像方法
- Patent Title: Toner, two-component developer, toner set, toner container, printed matter, image forming apparatus, and image forming method
- Patent Title (中): 调色剂,双组分显影剂,调色剂组,调色剂容器,印刷品,成像设备和成像方法
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Application No.: US14200344Application Date: 2014-03-07
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Publication No.: US09360780B2Publication Date: 2016-06-07
- Inventor: Kazumi Suzuki , Yoshitaka Yamauchi
- Applicant: Kazumi Suzuki , Yoshitaka Yamauchi
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-049925 20130313
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08 ; G03G15/20

Abstract:
To provide a toner, containing: a noncrystalline resin; and a crystalline resin, wherein the crystalline resin has a weight average molecular weight of 100,000 to 180,000, wherein a temperature range of the toner, within which a loss tangent (tan δ) as measured by a dynamic viscoelasticity measurement is 6 or greater, is 20° C. or greater, and wherein a fixed toner image has 60° glossiness of 30 to 50, where the fixed toner image is obtained by forming an unfixed toner image having a deposition amount of 0.4 mg/cm2 on a recording medium having 60° glossiness of 30 for a measurement, and fixing at temperature at which temperature of the toner image is a lowest temperature of the temperature range +10° C., at 0.15 MPa, for a nipping duration of 50 msec.
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